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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2024, 04:40

General

  • Target

    2024-10-10_3970d1e8eec5944752b1ee6f487db3d0_cryptolocker.exe

  • Size

    84KB

  • MD5

    3970d1e8eec5944752b1ee6f487db3d0

  • SHA1

    3210a827d2872faa19993f40c518d2a6df12cc36

  • SHA256

    b453c5e31728901dfdef49778454bc98b0838d361d2663059d7b0220881021e6

  • SHA512

    394f1fbd99ae3c4b5333fc62c2a394327f5ac95c2d04550ded411b69efc2d2f42458f8d1ba5f562393d917fc196e9101f289f7852300b9bfe0147a55af4448b1

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvzkxk:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8zL

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-10_3970d1e8eec5944752b1ee6f487db3d0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-10_3970d1e8eec5944752b1ee6f487db3d0_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2864
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:3964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    84KB

    MD5

    ad5791887d17d2402034ef48482951c9

    SHA1

    95393f28ba2b8ffe7fd835272ac148f3a55a81f0

    SHA256

    bd05e4409e7b9d702a59de300026566d3ef39c492092842a6c00603f4ea8a1cd

    SHA512

    16aae4acb715947d30ff302f625c2e69fd93ee9442d67875ba8fb46fc43e0072a6d40e0e448fdc34c66cf1a423d3e0e2917a0f80d2ee68bf7b6aa173653ab214

  • C:\Users\Admin\AppData\Local\Temp\misids.exe

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2864-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2864-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/2864-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/2864-3-0x0000000002230000-0x0000000002236000-memory.dmp

    Filesize

    24KB

  • memory/2864-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3964-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/3964-26-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3964-48-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB